82440608279 has 16 divisors (see below), whose sum is σ = 86693967360. Its totient is φ = 78244684320.

The previous prime is 82440608191. The next prime is 82440608281. The reversal of 82440608279 is 97280604428.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82440608279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82440608179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2174417 + ... + 2212005.

It is an arithmetic number, because the mean of its divisors is an integer number (5418372960).

Almost surely, 2^82440608279 is an apocalyptic number.

82440608279 is a deficient number, since it is larger than the sum of its proper divisors (4253359081).

82440608279 is a wasteful number, since it uses less digits than its factorization.

82440608279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38350.

The product of its (nonzero) digits is 1548288, while the sum is 50.

The spelling of 82440608279 in words is "eighty-two billion, four hundred forty million, six hundred eight thousand, two hundred seventy-nine".